The following from the printer to print, frame the aliquation vacuum pump suction nozzle this paragraph rubberand;work over time could easily be broken flat suction change to prevent air leaks.

• 从晒版机下背晒版框架呼气孔到真不满泵呼嘴这一段的橡皮胶惯，处事工夫一不幼便当被呼凹毁坏，答准时变换，以不攻漏气。